Directions

1Heat oven to 425°F. Cook and drain macaroni as directed on package, using minimum cook time.

2Meanwhile, in 3-quart saucepan, melt butter over low heat. Stir in flour and mustard with whisk; cook and stir until smooth. Gradually add milk. Heat to boiling, stirring constantly. Boil 1 minute until mixture is hot and bubbly. Add Cheddar cheese; stir until cheese is melted and sauce is smooth. Season with salt.